import * as react from 'react';
import { HTMLAttributes } from 'react';

interface HeatmapDatum {
    date: Date | string | number;
    value: number;
}
interface HeatmapProps extends Omit<HTMLAttributes<HTMLDivElement>, 'children'> {
    data: HeatmapDatum[];
    /** Grid start (default: earliest date in `data`). */
    startDate?: Date | string | number;
    /** Grid end (default: latest date in `data`). */
    endDate?: Date | string | number;
    /** First column of each week: 0 = Sunday, 1 = Monday (default 1). */
    weekStartsOn?: 0 | 1;
    /**
     * Five cell colors by intensity: index 0 = zero/no activity, 1–4 = light→
     * strong. Defaults to a yellow-on-noir scale.
     */
    colors?: [string, string, string, string, string];
    /** Formats the value in tooltips and the SR table (default: raw number). */
    formatValue?: (value: number) => string;
    formatDate?: (date: Date) => string;
    locale?: string;
    /** Show the “Less → More” intensity legend (default on). */
    showLegend?: boolean;
    cellSize?: number;
    cellGap?: number;
    ariaLabel?: string;
    /** Visually-hidden data table of every day's value for screen readers (default on). */
    srTable?: boolean;
}
declare const Heatmap: react.ForwardRefExoticComponent<HeatmapProps & react.RefAttributes<HTMLDivElement>>;

export { Heatmap, type HeatmapDatum, type HeatmapProps };